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Finding the Fourth Proportional to 101,582.33, 152,431.81 and 79,333.25

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Solution

The fourth proportional to 101,582.33, 152,431.81 and 79,333.25 is: 119,045.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,582.33 : 152,431.81 = 79,333.25 : x
  2. Step 2: Convert to fraction form
    101,582.33/152,431.81 = 79,333.25/x
  3. Step 3: Cross multiply
    101,582.33x = 152,431.81 × 79,333.25
  4. Step 4: Simplify right side
    101,582.33x = 12,092,909,930.19
  5. Step 5: Solve for x
    x = 12,092,909,930.19/101,582.33
  6. Step 6: Final answer
    x = 119,045.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.